What is conclusive evidence that mixing sugar in water is a physical change

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium